Snowplow



Jan. 13, 1931. A. o. LILE ET AL 1,788,879

SNOWPLOW Filed April 5, 1930 3 Sheets-Sheet '1 Jan. 13, 1931 A O. LILEET AL SNOWPLOW Filed April 5, 1930 I5 Sheets-Sheet 2 Jan. 13, 1931.

gwuentoz JiaLiZe 1 vane Patented Jan. 13; 1931 v UNITED STATES PATENTOFFICE ADIEL o. LILE, or coRBIN; AND THOMAS AQcnANE, or CALDWELL, Kansassnowrrowi Application filed April 5,f193o. serial to. 441,891.

- This invention relates to snow plows of the double sweep ormouldboardtype and adapted to lie-arranged infrOntofa tractor and hitched tothe rear end thereof.

i 6. "The inventionhas for one of its objects to provide a snow. plow ofthe character stated which shall embody knives or shares adapted toprevent it from moving up out of the snow,

' and which shall embody mould boards adapt- 0 ed to throw instead ofpushing the show out wardly. j V

y The invention has for a further object to "provide a snow plow of thecharacter stated which shall embody a bracing structure 5 adapted topermit the mould boards to be made of comparatively lightsheet metal. a

The invention has for a further object to provide a snow plow of thecharacter stated which shall embody a push bar fixed to and extendingrearwardly from the inner sideof the center of the meeting edges of themould 'boardsand arranged above the lower edges of the knives or shares,and wherein the connection between the pushbar and the mould boardsshall be reinforced ,by the bracing structure. 8 v r The invention hasfor a further object to provide a snowjplow of'the character statedwhich shall be adapted'to be supported from 0 the ground by slides orrunners mould boards and the push bar.

The invention has for a further object to provide a snow plow of thecharacter stated which shall embody ahitch bar connected at 135 itsfront end to the pushbar and adapted to be connected at its rear end tothe rear end of a tractor.

The invention has for a further object to provide a snow plow of thecharacter stated which shall embody a crust cutter arranged in avertical position forwardly of the meeting edges of the mould boards andfirmly secured thereto. p

The invention has for a still further object toprovide a snow plow ofthe characterstated wherein the bracing structure shall be adapted to besecured to the front end of a tractor.

The invention is hereinafter fully de-' scribed andclaimed, andillustratedin the ac- 1 companying drawings, wherein:

'dinally through the fixed .to the Knives or shares 4 are welded Figure1 is a view partly in side elevation and partly in vertical sectionillustrating the application of the snow plow to a tractor;

Figure 2 is a bottom plan view of the snow plow; V Figure 3 is asectional view taken on a vertical plane extending centrally andlongitusnow plow;

Figure 4 is a view n front elevation of the snow plow; V Figure 5 is asectional view taken on the vertical plane indicated by the line 5-5 ofFigure 3, and

Figure 6 is a sectional view taken. on a vertical plane indicated by theline 6-6 of Fig ure 3. The snow plowcomprises rearwardlydiverging mouldboards 1 which aremade of comparatively light sheet metal and may havetheir front or meeting edges welded or secured together in any othersuitable manner. Themould boards 1 incline upwardly and rearwardly, andare of arcuate formation in vertical section with their con cave sidesforemost. The upperand shallower portions of the mould boards I extendoutwardly and rearwardly beyond their lower and deeper portions, as at2, and the lower edges of these extensionsand the rear edges of saidlower portions are curved as at 3.

or otherwise secured to the front sides of the mould boards 1 and extendbelow the lower edges of the mould boards. The knives or shares 4incline downwardlyand forwardly, and

wardly to provide attaching flanges 5. A

crustcutting blade 6 is arranged in a vertical position directly infront of the united edges of theimould boards 1. vThe lowerend of theblade 6 is arranged'between the flanges 5a1id secured thereto, as at 7Rearwardly divergingbraces Shave their front ends arranged atoppositesides of the upper end portion of the blade 6 and securedthereto, as at 9. The rear ends of the braces 8 are secured to the upperedges of the mould boards 1, as at 10.

Due to the'formation of the mould boards 1, the plow will throw and notpush the 16a, and brackets 1? secured thereto snow outwardly; due to thedownward and forward inclinations of the knives or shares 4, the plowwill not move up out of the snow; and due to the locat on and verticalarrangement of the blade 6, the plow will readily pass through iceencrusted snow.

The plow is reinforced by bars 11 which are secured, as at 12, to therear sides of the mould boards and extend from the upper to their loweredges of the mould boards. The mould boards 1 are also strengthened andreinforced by bars 13 which are secured, as at 14, to their rear sidesnear their upper edges and extend from their inner to their outer edges.A board 15 is arranged upon and extends across the plow and is securedat its ends to the mould board 1.

A. push bar 16 is fixed to the inner sides of the front edges of themould boards 1 and extends rearwardly therefrom. The push bar 16 is madeup of two channel bars and to the innermost of the reinforcing bars 11,serve to secure the push bar to the plow, the brackets being secured, asat 18, to the push bar and, as at 19, to said reinforcing bars. Areinforcing bar 20 is secured, as at 21, to the push bar 16 and as at22, to the innermost reinforcing bars 11. Braces 23 are secured, as at24, to the push bar 16 and as at 25 to certain of the side reinforcingbars 11. The braces 20 and 23 incline upwardly and forwardly from thepush bar 16 to the mould boards, and serve to establish a firm and rigidconnection between such bar and distribute the propelling force equallyover the plow.

The plow is supported by a central runner 26 which is secured, as at 27,to the push bar 16, and by side runners 28 which are secured to themould boards 1. The runner 26 is arranged forwardly of the runners 28,and all of the runners extend below the knives or shares 4 to maintaintheir lower edges out of contact with the ground. The plow is adapted tobe arranged in front of a tractor of the caterpillar type or the typeshown in Figure 1 and designated generally by the reference character29.

The plow is connected to the tractor 29 by a hitch bar 30 which isarranged beneath and extends longitudinally of the tractor, and isconnected at its front end. as at 31, to the rear end of the push bar16, and at its rear end, as at 32, to the rear end of the tractor.

The plow is connected to the front end of the tractor 29 by hitch bars33 which are arranged above and laterally beyond the push bar 16 andhave their front ends secured, as at 34, to the mould boards 1. Thehitch bars 33 have their rear ends secured to the tractor 29 by links35. Brace bars 36 extend from the hitch bars 33 to the mould boards 1,and are secured to the mould boards near the curved edges 3 thereof, asat 37, the brace bars being secured, as at 38, to the hitch bars 33.Braces 39 extend from the brace bars 36 to the mould boards 1 and aresecured, as at 40, to the curved edges 3 of the mould boards, the bracesbeing secured to the bars, as at 41. The hitch bars 33 are arranged ina. substantially horizontal position, the brace bars 36 incline upwardlyand outwardly from the hitch bars, and the braces39 incline downwardlyand forwardly from the brace bars.

Crossed hitch bars 42 are secured at their front ends, as at 43, to thelower rear corners of'the mould boards 1 and incline upwardly andrearwardly to points above and rearwardly of the push bar 16. The rearends of the hitch bars 42 are connected by a bar 44 which is provided atits center with a yoke 45 embracing the hitch bar 30. The yoke 45 isarranged vertically and is considerably greater in length than thediameter of the hitch bar. The united ends of the brace bars 42 and bar44 are secured by links 46, to the tractor 29. C"

The links 35 and 46 may he bolted or 0therwise secured to the tractor29. They are connected to the hitch bars 33 and 42 by bolts 35a and 46a.These bolts establish a loose connection between the links 35 and 36and? the hitch bars 33 and 42 so as to permit the plow 1 and the tractor29 to have slightly vertical movements with respect to each other. Theplow 1 is adapted to be propelled by a tractor of the caterpillar typeas well as by a tractor of the type shown in the drawings. WVhen it isto be propelled by a caterpillar tractor, the links 35 and 46 areomitted and the rear ends of the hitch bars and 42 are connecteddirectly to the tractor.

The connection between the push bar 16 and the plow is furtherreinforced by braces 47 which are secured to the rear ends of the hitchbar, as at 48, and to the lower corners of the mould boards 1 by theelements 43.

It should be understood from the foregoing description, talren inconnection with the accompanying drawings, that the plow may be easilyand quickly hitched to a tractor, that the hitching structureestablishes a firm connection between the plow and tractor and holds themould boards against distortion and distributes a pushing force of thetractor over the entire plow, that the hitching structure is firmlyconnected to the plow, and that the mould boards of the plow are sostrongly reinforced as to permit them to be made of comparatively lightsheet metal.

Vhile we have described the principle of the invention, together withthe structure which we now consider the preferred embodiment thereof, itis to be understood that the structure shown is merely illustrative andthat such changes may be made, when desired, as fall within the scope ofthe invention as claimed. a

We claim a a w v 1. A snow plow having rearwardly divergmg mould boardsof arcuate formation 1n vertical section, the mouldboardsincliningupwardly and rearwardly and having their concave sides foremost, sharessecured to the mould boards'and inclining upwardly and rearwardly, acrust cutting blade arranged in a vertical position directly in advanceof'the front edges of the mouldboards, the shares extending from thefront edges of the mould boards to the rear edges thereof and providedat their front ends with forwardly directed flanges between which thelower end of the blade is arranged, means securing the lower end of theblade to said flanges, and rear- Wardly diverging braces secured to theupper 39 end of the blade and to the mould boards. 7

V 2. A snow plow having rearwardl-y diverging mould boards, a push barsecured to the mould boards, a hitch bar securedto the push bar, a yokeembracing the hitch bar and provided with arms, and hitch bars extendingfrom the arms to the mould boards. a

3. A snow plow having rearwardly diverging mould boards, a push barsecured to the mould boards, a hitch bar secured to the push bar, a yokeembracing the hitch bar and provided with arms, hitch bars extendingfrom the arms to the mould boards, other hitch bars secured to the mouldboards, braces extending from said last hitch bars to the rear edges ofthe mould boards, and attaching links connected to the second and thirdnamed hitch bars for movement vertically with respect thereto.

In testimony whereof we hereunto affix our signatures. I

ADIEL O. LILE. THOMAS A. CRANE.

